Home / 4,771.28-7,144.68-3,123.02

Finding the Fourth Proportional to 4,771.28, 7,144.68 and 3,123.02

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Solution

The fourth proportional to 4,771.28, 7,144.68 and 3,123.02 is: 4,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.28 : 7,144.68 = 3,123.02 : x
  2. Step 2: Convert to fraction form
    4,771.28/7,144.68 = 3,123.02/x
  3. Step 3: Cross multiply
    4,771.28x = 7,144.68 × 3,123.02
  4. Step 4: Simplify right side
    4,771.28x = 22,312,978.53
  5. Step 5: Solve for x
    x = 22,312,978.53/4,771.28
  6. Step 6: Final answer
    x = 4,676.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.